hyperFlash write access

I would please like to ask about hyperFlash example (evkmimxrt1050_flexspi_hyper_flash_polling_transfer):

In the example, I see the following parts:

1. hyperFlash initialization

2. hyperFlash write of page

3. hyperFlash read of page

4. compare the read and write contents.

I had assumed that flexSPI interface only needs to be initialized (There is LUT for read and write command) , and then can be accessed by direct read/write from the absolute address (where the device is mapped to).